[Nyx]

I have cracked some tooth and waiting for the dentist to call since his schedule is busy.

Be sure to have It fixed.

If not, when you least expect It, the pain will hit and you'd be begging the dentist to schedule you In.

Yeah big time this. As that cracked tooth begins to wear away, the underlying nerve will eventually become exposed. And when you've got an exposed nerve, you're surely in for a treat.